Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6735415 | Sheet postprocessing apparatus and image forming apparatus | Kenichiro Isobe, Yasuyoshi Hayakawa, Masayoshi Fukatsu, Junichi Sekiyama | 2004-05-11 |
| 6722646 | Sheet treating apparatus and image forming apparatus | Junichi Sekiyama, Yasuyoshi Hayakawa, Kenichiro Isobe, Masayoshi Fukatsu, Hironobu Ata | 2004-04-20 |
| 6674976 | Sheet post-processing device, image forming apparatus having the device and error handling method therefor | Kaoru Sato, Yasuyoshi Hayakawa, Mitsuhide Takamura | 2004-01-06 |